Scientific Name
Hypericum kalmianum

Common Name
Kalm's St. John's wort

 
Hardiness Zones: 4 to 7
Habit: Deciduous
Growth Rate: Slow to moderate
Site Requirements: Sun to partial shade; range of soil types; tolerates dry soil
Height: 2 to 4 feet
Width: 3 to 4 feet
Texture: Medium
Form: Stout, stiff, erect stems; rounded, dense, compact
Flower/Fruit: 1 to 1.5" yellow flowers in summer
Foliage: Opposite, simple bluish green leaves; 1 to 2" long
Comments: Drought tolerant; more loose and open than other hypericum; most cold-hardy hypericum
Cultivars: --
   


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